Shareholder Report, Holdings (Details)	Jun. 30, 2026
C000005445 \| Top10HoldingNVIDIABNY-67066G104
Holdings [Line Items]
Percent of Net Asset Value	15.70%
C000005445 \| Top10HoldingAlphabetBNY-02079K107
Holdings [Line Items]
Percent of Net Asset Value	12.00%
C000005445 \| Top10HoldingBroadcomBNY-11135F101
Holdings [Line Items]
Percent of Net Asset Value	5.90%
C000005445 \| Top10HoldingAppleBNY-037833100
Holdings [Line Items]
Percent of Net Asset Value	4.40%
C000005445 \| Top10HoldingMicrosoftBNY-594918104
Holdings [Line Items]
Percent of Net Asset Value	4.30%
C000005445 \| Top10HoldingAdvanced Micro DevicesBNY-007903107
Holdings [Line Items]
Percent of Net Asset Value	3.50%
C000005445 \| Top10HoldingMeta PlatformsBNY-30303M102
Holdings [Line Items]
Percent of Net Asset Value	3.50%
C000005445 \| Top10HoldingCarvanaBNY-146869102
Holdings [Line Items]
Percent of Net Asset Value	3.30%
C000005445 \| Top10HoldingAmazon.comBNY-023135106
Holdings [Line Items]
Percent of Net Asset Value	3.20%
C000005445 \| Top10HoldingEli LillyBNY-532457108
Holdings [Line Items]
Percent of Net Asset Value	3.20%
C000005445 \| Information Technology
Holdings [Line Items]
Percent of Net Asset Value	51.90%
C000005445 \| Communication Services
Holdings [Line Items]
Percent of Net Asset Value	17.80%
C000005445 \| Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	11.50%
C000005445 \| Financials
Holdings [Line Items]
Percent of Net Asset Value	6.80%
C000005445 \| Health Care
Holdings [Line Items]
Percent of Net Asset Value	5.90%
C000005445 \| Industrials & Business Services
Holdings [Line Items]
Percent of Net Asset Value	4.90%
C000005445 \| Utilities
Holdings [Line Items]
Percent of Net Asset Value	0.40%
C000005445 \| Materials
Holdings [Line Items]
Percent of Net Asset Value	0.30%
C000005445 \| Investment TypeOther Holdings Grouping
Holdings [Line Items]
Percent of Net Asset Value	0.50%
C000005446 \| Top10HoldingNVIDIABNY-67066G104
Holdings [Line Items]
Percent of Net Asset Value	15.70%
C000005446 \| Top10HoldingAlphabetBNY-02079K107
Holdings [Line Items]
Percent of Net Asset Value	12.00%
C000005446 \| Top10HoldingBroadcomBNY-11135F101
Holdings [Line Items]
Percent of Net Asset Value	5.90%
C000005446 \| Top10HoldingAppleBNY-037833100
Holdings [Line Items]
Percent of Net Asset Value	4.40%
C000005446 \| Top10HoldingMicrosoftBNY-594918104
Holdings [Line Items]
Percent of Net Asset Value	4.30%
C000005446 \| Top10HoldingAdvanced Micro DevicesBNY-007903107
Holdings [Line Items]
Percent of Net Asset Value	3.50%
C000005446 \| Top10HoldingMeta PlatformsBNY-30303M102
Holdings [Line Items]
Percent of Net Asset Value	3.50%
C000005446 \| Top10HoldingCarvanaBNY-146869102
Holdings [Line Items]
Percent of Net Asset Value	3.30%
C000005446 \| Top10HoldingAmazon.comBNY-023135106
Holdings [Line Items]
Percent of Net Asset Value	3.20%
C000005446 \| Top10HoldingEli LillyBNY-532457108
Holdings [Line Items]
Percent of Net Asset Value	3.20%
C000005446 \| Information Technology
Holdings [Line Items]
Percent of Net Asset Value	51.90%
C000005446 \| Communication Services
Holdings [Line Items]
Percent of Net Asset Value	17.80%
C000005446 \| Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	11.50%
C000005446 \| Financials
Holdings [Line Items]
Percent of Net Asset Value	6.80%
C000005446 \| Health Care
Holdings [Line Items]
Percent of Net Asset Value	5.90%
C000005446 \| Industrials & Business Services
Holdings [Line Items]
Percent of Net Asset Value	4.90%
C000005446 \| Utilities
Holdings [Line Items]
Percent of Net Asset Value	0.40%
C000005446 \| Materials
Holdings [Line Items]
Percent of Net Asset Value	0.30%
C000005446 \| Investment TypeOther Holdings Grouping
Holdings [Line Items]
Percent of Net Asset Value	0.50%